The Border Gateway Protocol (BGP) is the protocol backing the core routing decisions on the Internet. It maintains a table of IP networks or 'prefixes' which designate network reachability among autonomous systems (AS). It is described as a path vector protocol. BGP does not use traditional Interior Gateway Protocol (IGP) metrics, but makes routing decisions based on path, network policies and/or rulesets. For this reason, it is more appropriately termed a reachability protocol rather than routing protocol.

Wednesday, December 4, 2013

[bgp-stats] Routing Table Report - Hong Kong view

* BGP Routing Table Analysis Reports *
Routing Table Report 06:00 +10GMT Thu 05 Dec, 2013

Report Website: http://thyme.rand.apnic.net
Detailed Analysis: http://thyme.rand.apnic.net/hk/

Analysis Summary
----------------

BGP routing table entries examined: 470041
Prefixes after maximum aggregation: 188855
Deaggregation factor: 2.49
Unique aggregates announced to Internet: 234817
Total ASes present in the Internet Routing Table: 45508
Prefixes per ASN: 10.33
Origin-only ASes present in the Internet Routing Table: 35470
Origin ASes announcing only one prefix: 16281
Transit ASes present in the Internet Routing Table: 5818
Transit-only ASes present in the Internet Routing Table: 156
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 37
Max AS path prepend of ASN ( 55644) 31
Prefixes from unregistered ASNs in the Routing Table: 1074
Unregistered ASNs in the Routing Table: 290
Number of 32-bit ASNs allocated by the RIRs: 5441
Number of 32-bit ASNs visible in the Routing Table: 4220
Prefixes from 32-bit ASNs in the Routing Table: 13151
Number of bogon 32-bit ASNs visible in the Routing Table: 1
Special use prefixes present in the Routing Table: 1
Prefixes being announced from unallocated address space: 1289
Number of addresses announced to Internet: 2656815360
Equivalent to 158 /8s, 91 /16s and 201 /24s
Percentage of available address space announced: 71.8
Percentage of allocated address space announced: 71.8
Percentage of available address space allocated: 100.0
Percentage of address space in use by end-sites: 95.3
Total number of prefixes smaller than registry allocations: 162724

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes: 110356
Total APNIC prefixes after maximum aggregation: 33536
APNIC Deaggregation factor: 3.29
Prefixes being announced from the APNIC address blocks: 112576
Unique aggregates announced from the APNIC address blocks: 47925
APNIC Region origin ASes present in the Internet Routing Table: 4856
APNIC Prefixes per ASN: 23.18
APNIC Region origin ASes announcing only one prefix: 1233
APNIC Region transit ASes present in the Internet Routing Table: 812
Average APNIC Region AS path length visible: 4.1
Max APNIC Region AS path length visible: 37
Number of APNIC region 32-bit ASNs visible in the Routing Table: 768
Number of APNIC addresses announced to Internet: 728629504
Equivalent to 43 /8s, 110 /16s and 1 /24s
Percentage of available APNIC address space announced: 85.2

APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319,
58368-59391, 63488-63999, 131072-133631
APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8,
49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8,
106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes: 162579
Total ARIN prefixes after maximum aggregation: 81545
ARIN Deaggregation factor: 1.99
Prefixes being announced from the ARIN address blocks: 163427
Unique aggregates announced from the ARIN address blocks: 75653
ARIN Region origin ASes present in the Internet Routing Table: 15913
ARIN Prefixes per ASN: 10.27
ARIN Region origin ASes announcing only one prefix: 6004
ARIN Region transit ASes present in the Internet Routing Table: 1617
Average ARIN Region AS path length visible: 4.4
Max ARIN Region AS path length visible: 21
Number of ARIN region 32-bit ASNs visible in the Routing Table: 41
Number of ARIN addresses announced to Internet: 1073131264
Equivalent to 63 /8s, 246 /16s and 175 /24s
Percentage of available ARIN address space announced: 56.8

ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647, 29696-30719, 31744-33791
35840-36863, 39936-40959, 46080-47103
53248-55295, 62464-63487, 393216-394239
ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8,
12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8,
20/8, 21/8, 22/8, 23/8, 24/8, 26/8, 28/8,
29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8,
40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8,
53/8, 54/8, 55/8, 56/8, 57/8, 63/8, 64/8,
65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8,
72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8,
98/8, 99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes: 119010
Total RIPE prefixes after maximum aggregation: 61063
RIPE Deaggregation factor: 1.95
Prefixes being announced from the RIPE address blocks: 122760
Unique aggregates announced from the RIPE address blocks: 78918
RIPE Region origin ASes present in the Internet Routing Table: 17520
RIPE Prefixes per ASN: 7.01
RIPE Region origin ASes announcing only one prefix: 8286
RIPE Region transit ASes present in the Internet Routing Table: 2785
Average RIPE Region AS path length visible: 4.8
Max RIPE Region AS path length visible: 25
Number of RIPE region 32-bit ASNs visible in the Routing Table: 2503
Number of RIPE addresses announced to Internet: 656287744
Equivalent to 39 /8s, 30 /16s and 40 /24s
Percentage of available RIPE address space announced: 95.4

RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-35839, 38912-39935
40960-45055, 47104-52223, 56320-58367
59392-61439, 61952-62463, 196608-200191
RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 46/8, 51/8,
62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8,
83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8,
90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8,
141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes: 52484
Total LACNIC prefixes after maximum aggregation: 9920
LACNIC Deaggregation factor: 5.29
Prefixes being announced from the LACNIC address blocks: 57650
Unique aggregates announced from the LACNIC address blocks: 27280
LACNIC Region origin ASes present in the Internet Routing Table: 2031
LACNIC Prefixes per ASN: 28.39
LACNIC Region origin ASes announcing only one prefix: 551
LACNIC Region transit ASes present in the Internet Routing Table: 389
Average LACNIC Region AS path length visible: 4.8
Max LACNIC Region AS path length visible: 30
Number of LACNIC region 32-bit ASNs visible in the Routing Table: 901
Number of LACNIC addresses announced to Internet: 145903872
Equivalent to 8 /8s, 178 /16s and 81 /24s
Percentage of available LACNIC address space announced: 87.0

LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247,
61440-61951, 262144-263679 plus ERX transfers
LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes: 11687
Total AfriNIC prefixes after maximum aggregation: 2572
AfriNIC Deaggregation factor: 4.54
Prefixes being announced from the AfriNIC address blocks: 12338
Unique aggregates announced from the AfriNIC address blocks: 4019
AfriNIC Region origin ASes present in the Internet Routing Table: 688
AfriNIC Prefixes per ASN: 17.93
AfriNIC Region origin ASes announcing only one prefix: 207
AfriNIC Region transit ASes present in the Internet Routing Table: 141
Average AfriNIC Region AS path length visible: 4.7
Max AfriNIC Region AS path length visible: 24
Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 7
Number of AfriNIC addresses announced to Internet: 48542208
Equivalent to 2 /8s, 228 /16s and 178 /24s
Percentage of available AfriNIC address space announced: 48.2

AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
17974 2721 902 88 PT TELEKOMUNIKASI INDONESIA
4766 2138 11550 641 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
4755 1794 392 190 TATA Communications formerly
9829 1534 1245 45 BSNL National Internet Backbo
4808 1293 2194 370 CNCGROUP IP network: China169
9583 1243 95 510 Sify Limited
9498 1217 309 73 BHARTI Airtel Ltd.
7552 1168 1080 13 Vietel Corporation
24560 1102 382 166 Bharti Airtel Ltd., Telemedia

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
6389 3041 3688 53 BellSouth.net Inc.
22773 2209 2939 137 Cox Communications, Inc.
18566 2052 379 178 MegaPath Corporation
1785 2047 686 131 PaeTec Communications, Inc.
20115 1683 1654 601 Charter Communications
4323 1652 1098 421 Time Warner Telecom
701 1511 11144 784 MCI Communications Services,
30036 1381 311 581 Mediacom Communications Corp
7018 1343 17798 882 AT&T WorldNet Services
6983 1294 771 579 ITC^Deltacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

ASN No of nets /20 equiv MaxAgg Description
8402 1896 544 16 OJSC "Vimpelcom"
34984 1367 244 224 TELLCOM ILETISIM HIZMETLERI A
20940 1190 448 900 Akamai Technologies European
31148 1010 45 20 FreeNet ISP
13188 895 99 48 TOV "Bank-Inform"
6849 856 363 39 JSC UKRTELECOM,
8551 785 370 41 Bezeq International
6830 774 2328 426 UPC Distribution Services
12479 677 798 53 Uni2 Autonomous System
35228 547 246 16 Avatar Broadband Limited

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3351 1825 110 NET Servicos de Comunicao S.A
10620 2674 433 213 Telmex Colombia S.A.
7303 1733 1153 229 Telecom Argentina Stet-France
18881 1708 908 20 Global Village Telecom
8151 1358 2855 424 UniNet S.A. de C.V.
11830 868 364 15 Instituto Costarricense de El
27947 816 93 89 Telconet S.A
6147 794 373 27 Telefonica Del Peru
7738 780 1498 36 Telecomunicacoes da Bahia S.A
6503 775 434 60 AVANTEL, S.A.

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

ASN No of nets /20 equiv MaxAgg Description
36998 1854 112 5 Sudanese Mobile Telephone (ZA
24863 871 338 26 LINKdotNET AS number
6713 554 633 26 Itissalat Al-MAGHRIB
8452 412 956 9 TEDATA
24835 297 144 9 RAYA Telecom - Egypt
3741 247 921 209 The Internet Solution
29571 229 21 15 Ci Telecom Autonomous system
36992 222 501 29 Etisalat MISR
15706 219 32 6 Sudatel Internet Exchange Aut
29975 192 668 21 Vodacom

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

ASN No of nets /20 equiv MaxAgg Description
28573 3351 1825 110 NET Servicos de Comunicao S.A
6389 3041 3688 53 BellSouth.net Inc.
17974 2721 902 88 PT TELEKOMUNIKASI INDONESIA
10620 2674 433 213 Telmex Colombia S.A.
22773 2209 2939 137 Cox Communications, Inc.
4766 2138 11550 641 Korea Telecom (KIX)
7545 2100 319 111 TPG Internet Pty Ltd
18566 2052 379 178 MegaPath Corporation
1785 2047 686 131 PaeTec Communications, Inc.
8402 1896 544 16 OJSC "Vimpelcom"

Complete listing at http://thyme.rand.apnic.net/hk/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

ASN No of nets Net Savings Description
6389 3041 2988 BellSouth.net Inc.
17974 2721 2633 PT TELEKOMUNIKASI INDONESIA
10620 2674 2461 Telmex Colombia S.A.
22773 2209 2072 Cox Communications, Inc.
7545 2100 1989 TPG Internet Pty Ltd
1785 2047 1916 PaeTec Communications, Inc.
8402 1896 1880 OJSC "Vimpelcom"
18566 2052 1874 MegaPath Corporation
36998 1854 1849 Sudanese Mobile Telephone (ZA
18881 1708 1688 Global Village Telecom

Complete listing at http://thyme.rand.apnic.net/hk/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS Designation Network Transit AS Description
65010 PRIVATE 1.38.8.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.9.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.11.0/24 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.32.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.160.0/19 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.192.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.224.0/20 38266 Hutchison Essar Ltd.
65010 PRIVATE 1.38.240.0/21 38266 Hutchison Essar Ltd.
65514 PRIVATE 5.102.224.0/19 47956 XFONE COMMUNICATION
62828 UNALLOCATED 8.21.130.0/24 3356 Level 3 Communicatio

Complete listing at http://thyme.rand.apnic.net/hk/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix Origin AS Description
0.0.0.0/0 4641 The Chinese University of Hon

Complete listing at http://thyme.rand.apnic.net/hk/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network Origin AS Description
23.90.128.0/18 27418 OUTOFWALL INC.
23.91.0.0/19 40676 Psychz Networks
23.91.4.0/24 40676 Psychz Networks
23.91.14.0/24 40676 Psychz Networks
23.91.32.0/19 36315 Servpac Inc.
23.91.80.0/20 21560 Capital Technology Services G
23.91.96.0/20 37958 ChinaCache Networks ASN
23.91.112.0/21 32475 MidPhase Inc.
23.91.120.0/21 36351 SoftLayer Technologies Inc.
23.91.160.0/19 36493 3757277 Canada Inc. (oa 295.c

Complete listing at http://thyme.rand.apnic.net/hk/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

!!Default route being announced!!

/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:16 /9:11 /10:31 /11:92 /12:253
/13:475 /14:928 /15:1629 /16:12820 /17:6749 /18:11209
/19:23111 /20:32959 /21:35584 /22:50060 /23:43737 /24:250345
/25:3 /26:5 /27:9 /28:7 /29:6 /30:0
/31:0 /32:1

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

ASN No of nets Total ann. Description
18566 2007 2052 MegaPath Corporation
36998 1819 1854 Sudanese Mobile Telephone (ZA
6389 1700 3041 BellSouth.net Inc.
8402 1608 1896 OJSC "Vimpelcom"
22773 1462 2209 Cox Communications, Inc.
30036 1221 1381 Mediacom Communications Corp
11492 1185 1223 Cable One
1785 1087 2047 PaeTec Communications, Inc.
6983 1035 1294 ITC^Deltacom
22561 964 1240 Digital Teleport, Inc

Complete listing at http://thyme.rand.apnic.net/hk/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

1:919 2:854 3:3 4:17 5:801 6:21
8:610 12:1880 13:3 14:898 15:11 16:3
17:19 18:19 20:25 23:614 24:1765 27:1696
31:1520 32:45 33:2 34:5 36:95 37:1941
38:917 39:5 40:181 41:3238 42:235 44:14
46:2057 47:10 49:703 50:857 52:12 54:44
55:6 56:4 57:26 58:1069 59:581 60:367
61:1479 62:1242 63:1976 64:4404 65:2347 66:4148
67:2104 68:1087 69:3297 70:895 71:504 72:2013
74:2584 75:327 76:293 77:1217 78:1008 79:669
80:1282 81:1050 82:630 83:696 84:584 85:1254
86:382 87:1035 88:547 89:1562 90:155 91:5698
92:613 93:1607 94:2109 95:1512 96:513 97:349
98:1096 99:41 100:30 101:655 103:3762 105:531
106:143 107:221 108:535 109:2007 110:979 111:1118
112:586 113:800 114:751 115:1045 116:1006 117:828
118:1222 119:1294 120:340 121:755 122:1869 123:1270
124:1382 125:1438 128:629 129:234 130:352 131:668
132:353 133:158 134:304 135:72 136:276 137:269
138:351 139:171 140:199 141:337 142:547 143:410
144:496 145:90 146:552 147:430 148:771 149:367
150:153 151:485 152:413 153:207 154:42 155:509
156:310 157:419 158:286 159:695 160:360 161:457
162:906 163:226 164:621 165:581 166:274 167:638
168:1042 169:125 170:1109 171:185 172:11 173:1625
174:671 175:540 176:1332 177:2429 178:1873 179:305
180:1602 181:882 182:1406 183:476 184:627 185:1088
186:2616 187:1423 188:1943 189:1234 190:7265 192:7086
193:5441 194:4033 195:3363 196:1334 197:1036 198:4744
199:5505 200:6071 201:2498 202:8951 203:8885 204:4540
205:2650 206:2892 207:2795 208:3955 209:3664 210:3023
211:1590 212:2151 213:1990 214:885 215:84 216:5421
217:1712 218:634 219:318 220:1263 221:587 222:332
223:517

End of report
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